1991044981926

Names of 1991044981926

• Cardinal: 1991044981926 can be written as One trillion, nine hundred ninety-one billion, forty-four million, nine hundred eighty-one thousand, nine hundred twenty-six.

Scientific notation

• Scientific notation: 1.991044981926 × 10¹²

Factors of 1991044981926

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4574

Divisors of 1991044981926

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 6 7 9 11 13 14 18 19 21 22 26 27 33 38 39 42 54 57 63 66 77 78 81 91 99 114 117 121 126 133 143 154 162 169 171 182 189 198 209 231 234 242 247 266 273 286 297 338 342 351 363 378 399 418 429 462 494 507 513 546 567 594 627 693 702 726 741 798 819 847 858 891 1001 1014 1026 1053 1089 1134 1183 1197 1254 1287 1386 1463 1482 1521 1539 1573 1638 1694 1729 1782 1859 1881 2002 2079 2106 2178 2223 2299 2366 2394 2457 2541 2574 2717 2926 3003 3042 3078 3146 3211 3267 3458 3549 3591 3718 3762 3861 4158 4389 4446 4519 4563 4598 4719 4914 5082 5187 5434 5577 5643 6006 6237 6422 6534 6669 6897 7098 7182 7371 7623 7722 8151 8778 9009 9038 9126 9438 9633 9801 10374 10647 10773 11011 11154 11286 11583 12474 13013 13167 13338 13557 13689 13794 14157 14742 15246 15561 16093 16302 16731 16929 18018 19019 19266 19602 20007 20449 20691 21294 21546 22022 22477 22869 23166 24453 26026 26334 27027 27114 27378 28314 28899 29887 31122 31633 31941 32186 33033 33462 33858 35321 38038 39039 39501 40014 40671 40898 41382 42471 44954 45738 46683 48279 48906 49709 50193 54054 57057 57798 58747 59774 61347 62073 63266 63882 66066 67431 68607 70642 73359 78078 79002 81081 81342 84942 85861 86697 89661 93366 94899 95823 96558 99099 99418 100386 105963 114114 117117 117494 118503 122013 122694 124146 127413 134862 137214 140049 143143 144837 146718 149127 150579 162162 171171 171722 173394 176241 179322 184041 186219 189798 191646 198198 202293 209209 211926 220077 234234 237006 244026 247247 254826 257583 260091 268983 280098 284697 286286 289674 297297 298254 301158 317889 342342 347963 351351 352482 366039 368082 372438 388531 404586 411229 418418 429429 434511 440154 447381 494494 513513 515166 520182 528723 537966 546799 552123 569394 594594 601027 606879 627627 635778 646217 695926 702702 732078 741741 763711 772749 777062 806949 822458 854091 858858 869022 891891 894762 944471 953667 1027026 1043889 1054053 1057446 1093598 1104246 1116193 1165593 1202054 1213758 1233687 1255254 1288287 1292434 1303533 1342143 1483482 1527422 1540539 1545498 1586169 1613898 1640397 1656369 1708182 1783782 1803081 1820637 1882881 1888942 1907334 1938651 2087778 2108106 2225223 2232386 2291133 2318247 2331186 2420847 2467374 2562273 2576574 2607066 2684286 2719717 2833413 2861001 3081078 3131667 3172338 3280794 3312738 3348579 3496779 3606162 3641274 3701061 3765762 3827593 3864861 3877302 4026429 4450446 4523519 4582266 4636494 4758507 4841694 4921191 5124546 5345977 5409243 5439434 5648643 5666826 5722002 5815953 6263334 6611297 6675669 6697158 6873399 6954741 6993558 7108387 7402122 7655186 7729722 7813351 8052858 8159151 8400821 8500239 9047038 9395001 9517014 9842382 10045737 10389181 10490337 10691954 10818486 11103183 11297286 11482779 11594583 11631906 12278123 13222594 13351338 13570557 13746798 13909482 14216774 14510509 14763573 15626702 16037931 16227729 16318302 16801642 16945929 17000478 17447859 18790002 19833891 20027007 20091474 20620197 20778362 20980674 21325161 22206366 22965558 23189166 23440053 24477453 24556246 25202463 25500717 27141114 28185003 29021018 29527146 30137211 31167543 31471011 32075862 32455458 33309549 33891858 34448337 34895718 36834369 39667782 40054014 40711671 41240394 42650322 43531527 44290719 46880106 48113793 48683187 48954906 49758709 50404926 51001434 52343577 56370006 58805747 59501673 60274422 61860591 62335086 62942022 63975483 66619098 68896674 70320159 72724267 73432359 73668738 75607389 76502151 81423342 85946861 87063054 88581438 90411633 92409031 93502629 96227586 97366374 99517418 101573563 103345011 104687154 110503107 117611494 119003346 122135013 123721182 127950966 130594581 135059353 140640318 144341379 145448534 146864718 149276127 151214778 153004302 159615599 171893722 176417241 178505019 180823266 184818062 187005258 191926449 203147126 206690022 210960477 218172801 220297077 221006214 226822167 244270026 257840583 261189162 270118706 277227093 280507887 288682758 298552254 304720689 310035033 319231198 331509321 352834482 357010038 366405039 383852898 391783743 405178059 421920954 433024137 436345602 440594154 447828381 453644334 478846797 515681166 529251723 535515057 554454186 561015774 575779347 609441378 620070066 632881431 646863217 654518403 663018642 680466501 732810078 773521749 783567486 810356118 831681279 841523661 866048274 895656762 914162067 945415471 957693594 994527963 1058503446 1071030114 1117309193 1151558694 1175351229 1215534177 1265762862 1293726434 1309036806 1343485143 1360933002 1436540391 1547043498 1587755169 1663362558 1683047322 1755771589 1828324134 1890830942 1940589651 1963555209 1989055926 2234618386 2320565247 2350702458 2431068354 2495043837 2686970286 2742486201 2836246413 2873080782 3175510338 3351927579 3511543178 3646602531 3881179302 3927110418 4030455429 4309621173 4641130494 4763265507 4990087674 5267314767 5484972402 5672492826 5821768953 5890665627 6703855158 6961695741 7293205062 7485131511 8060910858 8227458603 8508739239 8619242346 9526531014 10055782737 10534629534 10939807593 11643537906 11781331254 12290401123 12928863519 13923391482 14970263022 15801944301 16454917206 17017478478 17465306859 20111565474 21879615186 24580802246 25526217717 25857727038 30167348211 31603888602 34930613718 36871203369 47405832903 51052435434 52395920577 60334696422 73742406738 76578653151 90502044633 94811665806 104791841154 110613610107 142217498709 153157306302 181004089266 221227220214 284434997418 331840830321 663681660642 995522490963 1991044981926
• Sum of all divisors σ(n): 6389513222400
• Sum of proper divisors (its aliquot sum) s(n): 4398468240474
• 1991044981926 is an abundant number, because the sum of its proper divisors (4398468240474) is greater than itself. Its abundance is 2407423258548

Bases of 1991044981926

• Binary: 11100111110010011100001110110010010100110₂
• Hexadecimal: 0x1CF938764A6
• Base-36: PEO8RWDI

Squares and roots of 1991044981926

• 1991044981926 squared (1991044981926²) is 3964260120052705666669476
• 1991044981926 cubed (1991044981926³) is 7893020219080301944261324623035890776
• The square root of 1991044981926 is 1411043.9333791131
• The cube root of 1991044981926 is 12580.3780037403

Scales and comparisons

• 1,991,044,981,926 seconds is equal to 63,309 years, 3 weeks, 5 days, 2 hours, 32 minutes, 6 seconds.
• To count from 1 to 1,991,044,981,926 would take you about one hundred fifty-eight thousand, two hundred seventy-two years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 1991044981926 cubic inches would be around 1048.4 feet tall.

Recreational maths with 1991044981926

• 1991044981926 backwards is 6291894401991
• 1991044981926 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1991044981926's digits is 63
• More coming soon!